
<h1><span class="yiyi-st" id="yiyi-12">numpy.exp2</span></h1>
        <blockquote>
        <p>原文：<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.exp2.html">https://docs.scipy.org/doc/numpy/reference/generated/numpy.exp2.html</a></p>
        <p>译者：<a href="https://github.com/wizardforcel">飞龙</a> <a href="http://usyiyi.cn/">UsyiyiCN</a></p>
        <p>校对：（虚位以待）</p>
        </blockquote>
    
<dl class="data">
<dt id="numpy.exp2"><span class="yiyi-st" id="yiyi-13"> <code class="descclassname">numpy.</code><code class="descname">exp2</code><span class="sig-paren">(</span><em>x</em><span class="optional">[</span>, <em>out</em><span class="optional">]</span><span class="sig-paren">)</span><em class="property"> = &lt;ufunc &apos;exp2&apos;&gt;</em></span></dt>
<dd><p><span class="yiyi-st" id="yiyi-14">对于输入数组中的所有<em class="xref py py-obj">p</em>，计算<em class="xref py py-obj">2 ** p</em>。</span></p>
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<tr class="field-odd field"><th class="field-name"><span class="yiyi-st" id="yiyi-15">参数：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-16"><strong>x</strong>：array_like</span></p>
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<div><p><span class="yiyi-st" id="yiyi-17">输入值。</span></p>
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<p><span class="yiyi-st" id="yiyi-18"><strong>out</strong>：ndarray，可选</span></p>
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<div><p><span class="yiyi-st" id="yiyi-19">数组将结果插入。</span></p>
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<tr class="field-even field"><th class="field-name"><span class="yiyi-st" id="yiyi-20">返回：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-21"><strong>out</strong>：ndarray</span></p>
<blockquote class="last">
<div><p><span class="yiyi-st" id="yiyi-22">元素方式2到幂<em class="xref py py-obj">x</em>。</span></p>
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<div class="admonition seealso">
<p class="first admonition-title"><span class="yiyi-st" id="yiyi-23">也可以看看</span></p>
<p class="last"><span class="yiyi-st" id="yiyi-24"><a class="reference internal" href="numpy.power.html#numpy.power" title="numpy.power"><code class="xref py py-obj docutils literal"><span class="pre">power</span></code></a></span></p>
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<p class="rubric"><span class="yiyi-st" id="yiyi-25">笔记</span></p>
<div class="versionadded">
<p><span class="yiyi-st" id="yiyi-26"><span class="versionmodified">版本1.3.0中的新功能。</span></span></p>
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<p class="rubric"><span class="yiyi-st" id="yiyi-27">例子</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">exp2</span><span class="p">([</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">])</span>
<span class="go">array([ 4.,  8.])</span>
</pre></div>
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